نتایج جستجو برای: deformed shell model
تعداد نتایج: 2157451 فیلتر نتایج به سال:
We show that a nearly perfect SU(3) symmetry emerges from an extended Projected Shell Model. Starting from a deformed potential we construct separate bases for neutron and proton collective rotational states by exact angular momentum projection. These rotational states are then coupled by diagonalizing a residual pairing plus quadrupole interaction. The states obtained exhibit a one-to-one corr...
A quantum deformed theory applicable to all shape-invariant bound-state systems is introduced by defining q-deformed ladder operators. We show these new ladder operators satisfy new q-deformed commutation relations. In this context we construct an alternative q-deformed model that preserve the shapeinvariance property presented by primary system. q-deformed generalizations of Morse, Scarf, and ...
Abstract The critical behavior in an important class of excited state quantum phase transitions is signaled by the presence a new constant motion only at one side energy. We study impact this phenomenon development chaos modified version paradigmatic Dicke model optics, which perturbation added that breaks parity symmetry. Two asymmetric energy wells appear semiclassical limit model, whose cons...
We present a novel scheme for nuclear structure calculations based on realistic nucleonnucleon potentials. The essential ingredient is the explicit treatment of the dominant interaction-induced correlations by means of the Unitary Correlation Operator Method (UCOM). Short-range central and tensor correlations are imprinted into simple, uncorrelated manybody states through a state-independent un...
F. Garcia∗, O Rodriguez ∗, F. Guzman∗, H.Dias, J.D.T Arruda-Neto , and M.S. Hussein† Instituto de Fisica da Universidade de Sao Paulo C.P.63318, 05315-970 São Paulo, SP, Brazil A. K. Kerman Center for Theoretical Physics, Laboratory for Nuclear Science and Department of PhysicsMassachusetts Institute of Technology-Cambridge, Massachusetts 02139,USA July 29, 1999 Microscopic Combinatorial approa...
A highly-deformed rotational band has been identified in the N = Z nucleus 36 Ar. At high spin the band is observed to its presumed termination at I π = 16 + , while at low spin it has been firmly linked to previously known states in 36 Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole...
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